use proconio::input;

fn main() {
    input! {
        mut l: i64,
        mut m: i64,
        mut n: i64,
    }
    let mut ans = 0;

    let q = n / 25;
    let r = n % 25;
    ans += r;
    m += q;

    let q = m / 4;
    let r = m % 4;
    ans += r;
    l += q;

    let r = l % 10;
    ans += r;

    println!("{}", ans);
}